Waqtigan xaadirka ah, rinjiga calaamadaynta waddooyinka ee ajnabiga ah ayaa aad ugu sarreeya biyaha waxayna u horumaraan si degdeg ah. In ka badan 90% rinjiga calaamadaynta waddooyinka ee dalalka horumaray sida Maraykanka, Jarmalka, Spain, Sweden, iyo Finland waxay isticmaalaan wax soo saarka biyaha. Sababo la xiriira bilowga hore ee dahaarka calaamadaynta waddooyinka shisheeye iyo horumarka degdega ah ee tignoolajiyada, nanometer calaamadaynta dahaarka, dahaarka calaamadaynta laba qaybood oo ka kooban, dahaarka calaamadaynta midabka midabka, iyo wixii la mid ah ayaa soo muuqday.
Dhowr bilood ama xitaa dhowr maalmood ka dib wax soo saarka, waxaa jiri doona isbeddel weyn oo ku yimaada viscosity, maqaarka dusha sare, iwm. wakhtiga aan ku dhegganayn ma buuxin karo shuruudaha dhabta ah ee dhismaha wadada oo saamaynaya dhismaha habsami u socodka gaadiidka ee wakhtigaas.
Hadda waxa Shiinaha ku yaala in ka badan 100 warshadood oo waaweyn iyo kuwo yaryar oo calaamadeeya rinjiga. Dhowr warshadood oo waaweyn oo leh awood farsamo oo xoog leh ayaa sidoo kale bilaabay inay soo saaraan rinji calaamadeeya biyaha oo ku salaysan biyaha. Si loo hubiyo tayada rinjiga lagu calaamadiyo waddooyinka, Wasaaradda Gaadiidka ayaa diyaarisay warshado ku habboon. Heerarka ayaa si xoog leh u kor u qaadaya dahaarka calaamadaynta biyaha ku salaysan. Falanqaynta khabiirada dahaarka sagxadda: Iyada oo la horumarinayo warshadaha gaadiidka waddooyinka ee Shiinaha iyo korodhka degdegga ah ee lahaanshaha baabuurta, baahida calaamadaynta dahaarka ayaa kor u kici doona. Kordhinta wacyiga dadka ee ilaalinta deegaanka iyo taageerada siyaasadaha iyo qawaaniinta qaranka, baahida loo qabo dahaarka calaamadaynta biyaha ee ku saleysan biyaha qadarku waa badan yahay.
Waddooyinka dalkayga ee lagu calaamadiyo rinjiga lagu calaamadiyo biyaha ayaa loo adeegsaday dhismaha garoomada diyaaradaha, waddooyinka waaweyn, iyo mashaariicda kale, kuwaas oo sidoo kale soo bandhigay cilad farsamo. Dhibaatooyinka hadda jira ee dahaarka calaamadaynta waddooyinka ee biyaha ku salaysan waxaa ka mid ah: nabar-xumada iyo caabbinta cimilada, oo u baahan in dib loo soo celiyo inta u dhaxaysa 1a; iska caabbinta biyaha liidata iyo caabbinta alkali, oo aan awoodin in ay buuxiso shuruudaha dhabta ah ee biyaha lagu qooyay wadada; caabbinta wasakhda liidata, iyo dusha sare ee calaamadaynta way fududahay in la ururiyo boodhka. Saamayn isku-dubbaridka dib-u-noolaynta oo yaree saamaynta milicsiga; xasilloonida kaydinta liidata.
